Typological characteristics and productivity of meadow ecosystems in the Oyokskoe Educational, Research and Production Farm, Cis-Baikal region
https://doi.org/10.30901/2227-8834-2026-2-o16
Abstract
Background. By now, insufficient attention has been paid to natural forage land reclamation. This situation has led to the gradual conversion of hayfields into pastures and their subsequent degradation, accompanied by a decrease in the productivity of forage lands, a change in the species composition, etc. Many farms counterbalance feed shortages mostly with species-poor seeded hayfields and pastures, but these are unable to fully replace natural rangelands either in species richness and diversity or in the availability of bioactive compounds and feed productivity.
Materials and methods. Geobotanical studies were conducted in 2017–2023 over the territory of the Oyokskoe Educational, Research and Production Farm, affiliated to Irkutsk State Agrarian University. The forage lands were surveyed using the conventional guidelines for a geobotanical study of natural rangelands.
Results and conclusions. Two classes of meadow ecosystems were identified within the target area (lowland meadow microdepressions, and short-flooded meadows of the riverbed and central floodplain), as well as one class of marsh ecosystems. The area under meadow ecosystems is 4235.9 hectares (14.54% of the total target area), of which 14.2% is occupied by hayfields (602.1 ha), and 85.8% by pastures (3633.8 ha). The productivity of forage lands is 0.71–1.26 t/ha (0.58–1.00 t/ha consumable air-dry weight). Surface improvement is recommended for dry and short-flooded meadows. Densely shrub-encroached medium-flooded, lowland, and marshy meadows require fundamental improvement.
Supporting agencies: the work was carried out within the framework of the Russian Federation R&D Project “Efficient use of meadow ecosystems in the Cis-Baikal region as a feed base for dairy and beef cattle farming” (No. 122030400446-8 of March 05, 2022).
About the Authors
E. G. Khudonogova
Irkutsk State Agrarian University named after A.A. Ezhevsky
Russian Federation
Russian Federation
Elena G. Khudonogova, Dr. Sci. (Biology), Head of a Department
Molodezhny Settlem., Irkutsk District, Irkutsk Province 664038, Russia
S V. Polovinkina
Irkutsk State Agrarian University named after A.A. Ezhevsky
Russian Federation
Russian Federation
Svetlana V. Polovinkina, Cand. Sci. (Biology), Associate Professor
Molodezhny Settlem., Irkutsk District, Irkutsk Province 664038, Russia
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Review
For citations:
Khudonogova E.G., Polovinkina S.V. Typological characteristics and productivity of meadow ecosystems in the Oyokskoe Educational, Research and Production Farm, Cis-Baikal region. Proceedings on applied botany, genetics and breeding. 2026;187(2):35-46. (In Russ.) https://doi.org/10.30901/2227-8834-2026-2-o16
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